Abstract
This paper discusses a new approach to crystallization of cluster aqua anions using an organic macrocyclic cavitand — cucurbituryl. Six water molecules coordinated to the cluster nucleus are geometrically complementary to the six oxygen atoms of the C=O groups of cucurbituryl, forming with them a stable system of hydrogen bonds. The resulting associates have low solubility and good crystallization properties. The crystal structures of 15 compounds of this type have been studied, and the main structural features have been revealed.
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Virovets, A.V. Cucurbituryl Associates with Trigonal and Cubane Transition Metal Cluster Aqua Complexes. Journal of Structural Chemistry 43, 478–487 (2002). https://doi.org/10.1023/A:1020397318241
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DOI: https://doi.org/10.1023/A:1020397318241